Jurors & social networking, why?

Here is another article discussing how jurors are using social networking, Google and other research and communication devices to empower themselves during deliberations. Its illegal, creates bias and distorts jury verdict and yet the phenomenon is only growing.

Two questions: what is the motivation? Do jurors not get that its wrong? Do they think its okay because they can get away with it? Is it push back against a system that they no longer trust? Is it the intoxication of power?

What to do about it? Do jurors need to be punished more severely to deter them from the activity? Does the court system need to develop a technology that requires jurors to lock down all their computers and communication devices during the trial and show evidence that they have down so? Other ideas?